The aim of this prospective study was to compare between two different treatment modalities of class II division 2; to start treatment in upper arch first until adequate overjet is obtained or to start in the lower arch first with removable anterior bite plane in upper arch.
Fifty four subjects with class II division 2 participated in this study. The subjects were randomly divided into two groups; Group one (28 patients): orthodontic treatment with upper arch bond up first and lower arch was bonded when 4 mm overjet was reached. The treatment continued until 0.019 x 0.025 " stainless steel wires were reached in both arches. Group 2 (26 patients): orthodontic treatment with lower arch bond up first with removable anterior bite plane in upper arch. When 0.019 x 0.025" stainless steel wire was reached, the upper arch was bonded. The treatment continued until 0.019 x 0.025" stainless steel wires were reached. Three cephalograms were taken for each patient in both groups; pretreatment (T0) , after bonding the other arch (T1) and at the end of leveling and alignment in both arches (T2). Cephalometric measurements and superimpositions were made. Skeletal and dentoalveolar treatment changes were compared within and between the 2 groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Enrollment
54
Jordan University of Science and Technology Dental Teaching Clinics
Irbid, Jordan
Upper and lower incisors proclination
Cephalometric analysis. Treatment changes in the values for upper and lower incisors in degrees, Upper incisor /Maxillary plane in degrees and lower incisors/Mandibular plane in degrees.
Time frame: 2 years
Duration of treatment
Measurements of time of treatment in months
Time frame: 2 years
Pain perception
Using visual analogue scale. From 0 where is no pain to 10 with severe pain
Time frame: 2 years
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